Thanks for the votes, but I think it's clear that Suicider (with all the new releases he uploads) wins.

But I think there is still one user missing: animestudz.
That guy has also uploaded a lot of (old) anime. I couldn't find most of the anime he uploaded on the net, so credits to him. (congrats on reaching 500+ uploads, studz. But it'll take you awhile before you reach my 1000+ uploads)